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Sustainable utilization of waste glycerol for 1,3-propanediol production over Pt/WOx/Al2O3 catalysts: Effects of catalyst pore sizes and optimization of synthesis conditions by Thanapha Numpilai; Chin Kui Cheng; Anusorn Seubsai; Kajornsak Faungnawakij; Jumras Limtrakul; Thongthai Witoon is a Environmental Science article available to read on EtoBox.
What is Sustainable utilization of waste glycerol for 1,3-propanediol production over Pt/WOx/Al2O3 catalysts: Effects of catalyst pore sizes and optimization of synthesis conditions about?
2 O 3 catalyst a b s t r a c t Recycling of waste glycerol derived from biodiesel production to high value-added chemicals is essential for sustainable development of Bio-Circular-Green Economy. This work studied the conversion of glycerol to 1,3-propanediol over Pt/WO x /Al 2 O 3 catalysts, pointing out the impacts of catalyst pore sizes and operating conditions for maximizing the yield of 1,3-propanediol. The results suggested that both pore confinement effect and number of available reactive metals as well as operating conditions determined the glycerol conversion and 1,3-propanediol selectivity. The small-pore 5Pt/WO x /SeAl 2 O 3 catalyst (6.1 nm) gave a higher Pt dispersion (32.0%), a smaller Pt crystallite size (3.5 nm) and a higher number of acidity (0.47 mmol NH 3 g À1 ) compared to those of the large-pore 5Pt/WO x /L-Al 2 O 3 catalyst (40.3 nm). However, glycerol conversion and 1,3-propanediol yield over the small-pore 5Pt/WO x /SeAl 2 O 3 catalyst were significantly lower than those of the large-pore Pt/WO x /L-Al 2 O 3 catalyst, suggesting that the diffusional restriction within the small-pore catalyst suppressed transportation of molecules to expose catalytic active si
Who reads Sustainable utilization of waste glycerol for 1,3-propanediol production over Pt/WOx/Al2O3 catalysts: Effects of catalyst pore sizes and optimization of synthesis conditions?
It is typically read by researchers, students, and practitioners in Environmental Science.
- Author
- Thanapha Numpilai; Chin Kui Cheng; Anusorn Seubsai; Kajornsak Faungnawakij; Jumras Limtrakul; Thongthai Witoon
- Publisher
- Elsevier BV
- Published
- 2021
- Language
- EN
- Field
- Environmental Science (Physical Sciences)